package com.sjgtw.cloud.common.core.utils;

import javax.servlet.http.HttpServletRequest;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import com.sjgtw.cloud.common.core.constant.CacheConstants;
import com.sjgtw.cloud.common.core.text.Convert;

/**
 * <p>Title: Security系统权限获取工具类</p>
 * <p>Description: </p>
 * @author Admin
 * @date 2020-7-4
 */
public class SecurityUtils
{
	/**
	 * 获取用户
	 */
	public static String getUsername() {
		try {
			String username = ServletUtils.getRequest().getHeader(CacheConstants.DETAILS_USERNAME);
			return ServletUtils.urlDecode(username);
		} catch (Exception e) {
			return null;
		}
	}

	/**
	 * 获取用户ID
	 */
	public static Long getUserId() {
		try {
			return Convert.toLong(ServletUtils.getRequest().getHeader(CacheConstants.DETAILS_USER_ID));
		} catch (Exception e) {
			return null;
		}
	}

	/**
	 * 获取请求token
	 */
	public static String getToken() {
		return getToken(ServletUtils.getRequest());
	}

	/**
	 * 根据request获取请求token
	 */
	public static String getToken(HttpServletRequest request) {
		String token = ServletUtils.getRequest().getHeader(CacheConstants.HEADER);
		if (StringUtils.isNotEmpty(token) && token.startsWith(CacheConstants.TOKEN_PREFIX)) {
			token = token.replace(CacheConstants.TOKEN_PREFIX, "");
		}
		return token;
	}

	/**
	 * 是否为管理员
	 * 
	 * @param userId 用户ID
	 * @return 结果
	 */
	public static boolean isAdmin(Long userId) {
		return userId != null && 1L == userId;
	}

	/**
	 * 生成BCryptPasswordEncoder密码
	 *
	 * @param password 密码
	 * @return 加密字符串
	 */
	public static String encryptPassword(String password) {
		BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
		return passwordEncoder.encode(password);
	}

	/**
	 * 判断密码是否相同
	 *
	 * @param rawPassword     真实密码
	 * @param encodedPassword 加密后字符
	 * @return 结果
	 */
	public static boolean matchesPassword(String rawPassword, String encodedPassword) {
		BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
		return passwordEncoder.matches(rawPassword, encodedPassword);
	}
}
